James west



J. WEST. CUTTER ROLL.

(No Model)? ,-60-O.. Patented Oct. 20, 1891.

mm STA S "A ENT FFICE-P JAM-Es when or er; ouis, MISSOURI, AssienoR or ONE-HALF To SAMUEL-- CUPPLES, or SAME-PLACE.

CUTTER-ROLL.

SPECIFICATION forming part of Letters Patent neeenoo uetea oetober so, 1891. Application filed November 14, 1890. Burial at. 871,458- (roman To all whom it may concern: I which tend to throw it outwardly, but yield Be it known that I, JAMES WEST, a citizen to permit it to move inward to a limited era of the United States, residingwin St. Louis, tent at'either orboth ends,butwithoutallow State of Missouri, have invented certain new ing the edge to pass back of the periphery of I and useful Improvements in Cutter-Rolls, of the carrier:cy1inder.' Different means of 5 which the following is-a specification.

In the manufacture of many articles of pabeemployed. For instance, the blade may and to separate the successive sections or permit the latter to pla-v freely therein; As blanks. Attempts have been made toefiect shown, the spring-support consists or blocksf v this cutting by means of knives carried by re-Y of rubberfitting sockets in the cylinder and at:

volving shafts; but great diiiiculty'hasbeen ranged for the lower edge of the blade'to rest experienced in maintaining the knives in op'- thereon and so as to yield: when pressure is erative condition, inasmuch as the knives, "brought against the edge of the'blade to. press owing to their rapid operation, speedily be-, it inward. j 2o come dulled and wear unequallyand fail to Opposite the revolving cutter is a'bed in make clean cuts, so thatthe papcravhen' cut at the form of a revolving cylinder g, preferably -'a'llpresents edges thatare more or less ragged. of extremely hard material say tempered With the view of remedying these defects I steel-and thestrip of paper to becutis passed construct a revolving cutter, as fully set forth between the cutter and the bed traveling at 25 hereinafter, and as illustrated in -the.accom-' the same rate of speed as'theedge of the panying drawings, inwhich-v cutter. 1 v v Figure 1 is a perspective view of a. cutter I Inasmuch as the knife s'loosely supported embodying my invention. Fig. 2 is a transin its rotating carrier and is free to moveto verse section of the cutter-roll, showing its, a limited extent transversely and radially, it 30 relation to the bed-roll. Fig. 3 is alongitudh willaccommodate itself to the surface of the,

. nal section on the line 3 3, Fig. 2. bed, so that even if irregularly worn at the The cutter is mounted on theshafta in any edge each portion of the cutting-edge can suitable manner, preferablysupported by a fin sgupou thoSH I'fMB of I cylinderb on said shaft, and consistsot one roller, vwhile the spring-support of the knife, 5 or more blades 0, which extend in adirectiou acting-with a yielding resistance whenv the generallyhorizontallyofthecarrierparallelor knife is pressed inby its contact with the at a suflicientangle to the'axis-to cut the edge bed, will insure the requisite-pressure. of the of a flap of an envelope and the edges of which edge against the bed, but will prevent the conform to the outline of the cylinder, but. dulling of such edge or the indentationotthia o projecting always above the latter when they 'bed that would occur if any portion of the 0 are set at an angle to'the axis of the shaft, knife projectedunduly from a rigid support. K as is the case in the construction shown-in Withoutlimiting myselfto tho precis'econ the drawings, where the two blades 0 c-meet structlon 'and arrangement of parts sl1own,;I at an angle, constituting a 'single cutter with c1a1rnf g Y. 5 its cutting-edge conforming to the outline of 7 -1 A rotary cutter having akn lte-carrieqa 5 the flap of an envelope. 7 1 I'lgld knlf8:bl2t( 18 arranged in a d recti'on gen-, 3 The blade or blades, instead of being seorally longitudinal t0 the'carrier andpermacured rigidly to its support, is confined loosely nently promoting. beyond the face of the ear; thereto thatis,so'as to havealimited amount rier and. loosely confined to the carrier and 7 50 of play -and has its bearings uponsprings resting on spring-bear ngs arran ed t ield 1w "carrier said socket wit of the carrier, an knife-blades,

3. The com tea limited extent to pressure upon th of the knife,

2.'The combinati having a peripher ing of two ,or more rigid knife-bled in .a' direction generally and confined and can more rig d sprin substantiall ier, 0 1d kmfeblades-e substantially as loosely- 11 their edges 1) bination, with a rot f a cutter consistin 0 edge set forthr on of a. rotating cylinder al socket a'cutter consistes arranged longitudinal to the end to end eyond't-he face -bearings for the as described.

ating sh g of one or aft direei tion generally longitudinal to the carrier and supported: loosely by up on springs with its edge permanently be yond the carrier, and a bed-roller having in plane surface and arranged to receive the edgeiof the cutter, substantially as set forth.

In testimonywlie'reof Ih'ave signed my name 10 to this spedifieation in the presence of two subscribing witnesses.

. JAMES WEST.

' Witnesses: Y Y Y J. B. CRANE,

said carrier and bearing :5. 

